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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 1362-2005 |
Testing methods of supplementary specification 1 to Store Program Control (SPC) 电话交换设备总技术规范(补充件1)的测试方法 |
China Telecommunication
Standards Test specification supplementary |
 English PDF |
| YD/T 1257-2003 |
Test specification of supplementary specification of IN CS-1 INAP 智能网能力集1(cs-1)智能网应用规程(inap)补充规定测试方法 |
China Telecommunication
Standards Test specification supplementary |
English PDF |
| YD/T 941-1997 |
ISDN user-network interface supplementary service conformance testing specification isdn用户－网络接口补充业务 一致性测试规范 |
China Telecommunication
Standards Test specification supplementary |
English PDF |
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